The conventional, sequential stages of software development (design, code, test, review) are becoming obsolete. AI agents merge these steps into a single, iterative loop driven by user intent. This isn't a 10x improvement on the existing workflow; it's a fundamental paradigm shift that makes the entire traditional process a relic.

Klaviyo's internal "Dark Factory" system uses a team of agents to take a high-level prompt, decompose it into specs and engineering subsystems, write code, and establish API contracts. This automates the software toolchain, from prototyping to load testing, with minimal human intervention.

Snyk founder's new venture, TESOL, posits that AI will make code disposable. Instead of code being the source of truth, a durable, versioned 'spec' document defining requirements will become the core asset. AI agents will generate the implementation, fundamentally changing software development.

The endgame for software development isn't just code completion, but an "AI factory." A chain of specialized agents will handle design, coding, review, and security. This requires an interoperable platform where different models can check each other's work, with humans as "agent managers."

Inspired by fully automated manufacturing, this approach mandates that no human ever writes or reviews code. AI agents handle the entire development lifecycle from spec to deployment, driven by the declining cost of tokens and increasingly capable models.

Factory frames the AI coding landscape using the Henry Ford analogy. AI assistants that simply speed up line-by-line coding are merely 'faster horses.' The true paradigm shift—the 'automobile'—is delegating entire tasks to autonomous agents, fundamentally changing the developer workflow.

Traditionally, building software required deep knowledge of many complex layers and team handoffs. AI agents change this paradigm. A creator can now provide a vague idea and receive a 60-70% complete, working artifact, dramatically shortening the iteration cycle from months to minutes and bypassing initial complexities.

The current model of a developer using an AI assistant is like a craftsman with a power tool. The next evolution is "factory farming" code, where orchestrated multi-agent systems manage the entire development lifecycle—planning, implementation, review, and testing—moving it from a craft to an industrial process.

The fundamental environment for creating software is evolving beyond the traditional IDE (Integrated Development Environment), where engineers are assisted, to the ADE (Agent Development Environment). In an ADE, autonomous AI agents build and generate code themselves, representing a paradigm shift in how software is created.